Time-recorder.



J. SOKOLOV.

TIME RECORDER.

APPLICATION FILED SEPT-24,1914.

Patented Mar. 7, 1916.

4 SHEETSSHEET1 nvemto c Jacob SokoLOU l I 1 l v 1 I I l L FigsJ28 13 Tn:COLUMBIA PLANOGRAPH co. WASHINGTON. 0. c.

J. SQKOLOV. TIME RECORDER.

APPLICATION FILED SEPT-24,1914- witnesses: M m. M

M C W,

THE COLUMBIA PLANOGRAPH co, WASHINGTON, n, c.

J. SOKOLOV.

TIME RECORDER.

APPLICATION man sEPT.24, I914.

1,174,633. Patented Mar. 7,1916.

4 SHEETS-SHEET 3- 5 mm ntoz 7}? Jacob Sokobov $51 his aM w e -F THECOLUMBIA PLANOGRAPH co.. WASHINGTON. D. c.

J. SOKOLOV.

TIME RECORDER.

APPLICATION FILED SEPT-24, I914.

Patented Mar. 7, 1916.

4 SHEETSSHEET 4.

5 mnntcvz 170000 b S 0K0 L0 1: %1 hisfltknmek UNITED STATES PATENTOFFTCFE.

JACOB SOKOLOV, OF NEW YORK, N. Y., ASSIGNOR TO JOHN FIRTH, OF NEW YORK,N. Y.

TIME-RECORDER.

Specification of Letters Patent.

Application filed September 24, 1914. Serial No. 863,253.

T all whom it may concern:

Be it known that I, JACOB SoKoLov, a citizen of the United States ofAmerica, and resident of the county of Bronx, city and State of NewYork, have invented certain new and useful Improvements in Time-Recorders, the principles of which are set forth in the followingspecification and accompanying drawings, which disclose the form of theinvention which I now consider to be the best of the various forms inwhich the principles of the invention may be embodied.

This invention relates to improvements in time recorders, the objectbeing to provide a structure more simple, compact, durable, and stronglyconstructed, and cheaper to construct, than heretofore, while having nolimitations as to the number of employees who may use it.

The invention consists of the machine and the novel features thereof tobe hereinafter disclosed.

Of the drawings, which disclose the preferred embodiment of theimprovements: Figure 1 is a front elevation of the complete machine, thelower part of the casing therefor being broken away to show a frontelevation of the recording mechanism. Fig. 2 is a side elevation of theright-hand side of Fig. 1, the lower part of the casing being brokenaway here also. ig. 3 is a plan corresponding to Fig. 1. Fig. -1 is anenlarged side elevation of the left side of the recording mechanism ofFig. 1, e. the side opposite to the side shown in Fig. 2. Fig. 5 is afront, elevation of the recording mechanism. being an enlarged view ofthe parts shown at the bottom of Fig. 1, save that the card-holder Bwhich is shown in Fig. 1 is here omitted for clearness. Fig. 6 is anenlarged front elevation of the time card A which is shown in miniaturein Fig. 1 in position in the card-holder B. Fig. 7 is a detailed sideelevation of the hour printing wheel L and its escapement mechanism; andFig. 8 is a front elevation, chiefly in section, of the hour and minuteprinting wheels and the hour wheel escapement mechanism, being anenlarged view of the same parts which are shown entirely in elevation inFig. 5, upper right hand. Fig. 9 is a per spective view of the lockingmechanism for the hour-wheel L shown in Figs. 5, 7 and 8. Fig. 10 is aright-hand side elevation of the escapement for the minute-wheel K andthe driving means for said escapement, this apparatus being locatedbehind the main frame R, shown in F ig. 2 inside the casing; and Fig. 11is a bottom plan of wheels 9 and J of said escapement. Fig. 12 is alefthand side elevation of the moving mechanism for the inking ribbon;and Fig. 13 is a front elevation of the same, being an enlargement ofthe same parts not so clearly shown in Figs. 1, 2 and 4. Fig. 1% is aright-hand side elevation of the escapement for the card-holderactuator, being an enlargement of the same mechanism shown in Figs. 1,2, 4 and 5; Fig. 15 is a plan of the same; and Fig. 16 is a frontelevation of the escapement wheel of the escapement of Figs. 14 and 1-5.

The general operation of the machine is as follows: Each employee isprovided with his own time card as A, Fig. 6, and when he arrives forwork, say in the morning, he places this card down in the top-slottedcard-holder B (Figs. 1 to 4;), wherein the bottom of the card rests onthe pin C (Figs. 1 and 5), the record face of the card facing backwardtoward the printing wheels K and L. He then turns knob D (Figs. 1 and 5)so that pointer E indicates the proper place (as In, morn) on the fixeddial F, Fig. 3. This turning of knob D results in depressing pin C theproper distance to permit card A to drop into a position inside itsholder B, wherein its correspondingly marked line as In, morn, Fig. 6,will be in place in front of the hour and minute printing wheels, L, K,Fig. 5, behind the card-holder B. Next, the employee depresses lever G(Fig. 1) to trip the hammer H (Figs. 1, 2, 1 and 5) which knocks backthat unsupported portion of the card (which appears through the hole inthe holder, Fig. 1) against the printing wheels, to receive on its facethe imprint of the hour and minute of the time of printing. Thereuponthe employee removes the card, leaving the holder empty to receive otheremployees cards successively.

Upon leaving, as at noon for example, the employee re-inserts his owncard in the holder, and repeats the above operations, save that he movespointer D (Fig. 3) to a diflerent position on the dial F, i. 6., to onewhich corresponds to the Out, noon line of his card. This operation maybe repeated for each horizontal line of his card, and in each case thepointer and dial control the proper vertical position of the card.

Hereinafter will be described the mechanism by which the card-holder Bis automatically shifted horizontally once every 24 hours to bring thesuccessive day-of-theweek columns of the card in proper horizontalposition in front of the printing wheels. This mechanism is. controlledby the clock mechanism (Fig. 1) which also controls the operation of thehour and minute printing wheels.

Controlling mecham'sm.-The general control by the clock mechanism of theabove three principal moving elements of the recording mechanism, theminute-printing wheel K, the hour-printing wheel L, and the card-holderB, is as follows: To any suitable wheel of the clock mechanism whichrotates once an hour, as shown in Fig. 1, is connected a rod I carryingat its lower end the minute-escapement wheel J (Figs. 1, 2, 5, 10, 11)this latter wheel acting through intermediate mechanism to trip theminuteprinting wheel K sixty times per hour (Figs. 4, 5, 8). The wheel Kis thus put in proper position to print the minutes on the card A. Thetripping of the hour-printing wheel L (Figs. 5, 7, 8) is also controlledfrom the clock mechanism, but by way of the minute-escapement wheel Jacting on the minute-printing wheel K as above, to operate through arm M(Figs. 5, 7, 8),which arm .each hour strikes wedge N (Figs. 5, 7, 8 and9) of the locking mechanism shown in Fig. 9, to shift said wedge N andwithdraw its projection 0 from any one of the slotse in hour-printingwheel L, to trip said wheel by one space. The tripping of the cardholderB (Figs. 1, 2 and 4) is also controlled by the clock mechanism, but byway of the minute-escapement wheel J acting (through intermediatemechanism of Figs. 14-16) to turn pinion P (Fig. 1) to operate rack 34to move the card-holder horizontally one day-space every 24 hours, so asto bring the next clay-column of card A in front of the minute and hourprinting wheels. Thus the clock mechanism and the escapement wheel Jconstitute the master control for the two printing wheels and for thecard-holder. But as will be seen, the escapement wheel J is the onlypart which is operated by the power from the clock mechanism. Othersources of power are provided not only for operating the printing wheelsand cardholder, but also for operating the escapement controls of thehour-printing wheel L and of the card-holder B, but subject in all casesto the master control of the escapement wheel J.

Power arrangemcnts.The general arrangement is as follows: The power foroperating both the printing wheels K and I. is derived either directlyor indirectly,

derived from an independent source consist ing of a spring 42 (Figs. 2,14 and 15) which spring is wound up once a week by the attendant in theact of re-setting the cardholder by shifting it horizontally so that theMonday column of the card comes opposite the printing wheels. The powerfor controlling the operation of the card-holder B by the power ofspring 42 is derived from drum 2 by way of a train of gears connected tothe train between drum 2 and the spring 10 which operates hour-wheel L,said train comprising (Figs. 8 and 14) 4, 6, 18, 19, 20, 21, 44, 45, Q.The power for operating the inking-ribbon spools SS (Figs. 1 and 5) isfurnished manually by the employee in pressing lever G to operate theprinting hammer H. Hour-wheel L is operated from drum 2 indirectly byway of an auxiliary storage spring 10 (Fig. 8) which is put undertension by drum 2 (Fig. 8) by way of a train of gears and ratchets 4, 6,18, 19, 20, 21, 14. Since it is the operation of minutewheel K (by thepower of drum 2) which controls hour-wheel L, it is therefore the drum 2which furnishes the power to control said hour-wheel L.

The details of the power arrangements are as follows: From drum 2 poweris conveyed to rotate the minute-printing wheel K which is fixed t0shaft 8. heel K is permitted to operate only intermittently by virtue ofescapement wheel 9 mounted on the same shaft 8, and engaging withspecially constructed escapement J, above described as being rotatedonce every hour by the clock mechanism. Power is conveyed to minutewheelK from drum 2 as follows: The drum 2 has peripheral teeth as shown,which engage pinion 4 on shaft 5 which carries gear 6 engaging pinion 7on shaft 8, on which wheels 9 and K are mounted. The power fromspring-drum 2 is conveyed through a separate spring 10 (Fig. 8) tooperate hourprinting wheel L. The spring 10 is adjusted during assemblyto have sufiicient tension so that when it is released by the escapementof hour-wheel L, it will move that wheel one space or 1/24th of arotation; and after 4 on the left end of shaft 5 as above described. Tothe right on shaft (Figs. 8 and 7) is mounted a ratchet 20 connectedthrough an intermediate portion with gear 21. A ratchet wheel 18 ismounted adjacent ratchet 20, and is engaged by the pawl 19 with ratchet20. Gear 21 drives gear li and in the latter at 15 is secured one end ofspring as shown in Fig. 8, the other end of the spring being connectedto move hourwheel L. (The ratchet mechanism is interposed in the drivingmechanism in order to permit independent setting of the hourwheel, asdescribed later). Thus the spring 10 is wound continually for one hourby the power from spring drum 2, at the end of which time it hassufficient tension to move wheel L the desired distance. (For theoperation of hour-wheel L itself, see infra under title of Hour-wheelescapement). The provision of this arrangement of auxiliary spring 10 isimportant in that it always provides the same tension irrespective ofthe condition of tension of the main spring 2, and such a tension as isno more than suflicient for its purpose, with the result that themechanism is not subjected to injurious shocks, and the clock-mechanismand recording mechanism are relieved from all overloading. Thisarrangement of auxiliary spring power is so advantageous in this type ofmechanism that a similar arrangement is Provided for the operation ofthe card-holder B, a difference being that in this case, the spring isentirely independent of drum 2, and is wound up manually once a week bythe attendant who resets the card-holder for the following week. Thisarrangement consists of a helical spring 42 (Figs. 2, 14 and whichsurrounds shaft (Fig. 14:), the front (left) end of the spring beingfixed in bearing etl for shaft 40, and its rear end (right) in clutchmember 43. Every 24: hours clutch member 43, which carries one end ofspring as, is released by the escapement mechanism (to be describedunder that title) operated from power drum 2, to permit spring 42 topartially rotate the clutch member and its shaft 4:0, to operatecard-holder B by partially rotating gear P (Figs. 14 and 1) whichoperates rack 34: which is fixed to the cardholder B (Fig. 1). Duringassembly, the spring 4:2 is subjected to the tension required to movecard-holder B horizontally from one extreme position to the other, insuch successive partial movements every 24-. hours as just abovedescribed. Throughout the week the card-holder islocked (by mechanism tobe described under the title of Cardholder escapement) against possibleattempts by employees to move it, and at the end of the week theauthorized attendant unlooks it and moves it back to the Monday morningposition, the cardholder then moving rack 34 and thereby operating gearP on shaft 40 to wind up spring 42 to its original tension; clutchmember 43 being held by its esoapement mechanism to permit this windingup.

The power to operate the escapement of the card-holder is derived fromthe abovedescribed train of gears between spring drum 2 and thehour-wheel spring 10. On the same shaft (5, Fig. 8) to which gear 21 ofthat train is fixed, is also fixed apinion le which engages idler e5(Fig. 1%) which drives gear Q (Figs. 1a and 15) on shaft 426 which ismounted in main frame R. Shaft 46 carries cam t? which directly controlsthe escapement as described hereinafter.

The main spring in drum 2 is provided with the winding mechanism shownin Fig. 2, consisting of spiral gears 11, 1), respectively mounted onmain shaft 3 and on winding shaft '0 Gear 1) is the driver, the gearsbeing spiral, the spring cannot operate gear o Thus although no safetyratchet arrangement is provided, the spring may be unwound, as for thepurpose of permitting repairs, without danger of its running away.

Print ing hammer and inking m'bb0n. The description of the manuallyapplied power for operating the printing and ribbon will be includedunder the above title.

The details of the construction and operation of the irinting hammer Hand of the inking ribbon spools S, S, actuated manually by the employee,are as follows, (see Figs. 1, 2, i and 5esgecially Fig. 2.) First, thehammer H, the upper end of which knocks against card A to force itagainst the inking ribbon, and that in turn, against the printingwheels. The lower end of this hammer is fixed on oscillating shaft 0*,on which is also fixed lever 72, the free end of which is pulled down byspring 73 held at its lower end by screw 68. Lever G is the manualactuator for hammer H. t is fixed intermediate its end on oscillatingshaft Q, has its rear end pulled down by spring 6? held at its lower endby screw 68, and has a. pawl 69 pivoted to it. When lever G is depressedagainst its spring 67. the forward end of its pawl 69 engages withincline T of hammer H, and thereby pushes forward the hammer against itsspring 73 and away from card A. As the rounded end of the pawl 69travels down incline 70, its other end is held against pin 71 on leverG, but as soon as the center of the rounded end of the pawl reaches thepoint of incline 70. hammer-spring 73 operates to pull forward the upperend of hammer H, and the hammer-recess below incline moves around therounded end of the pawl, while forcing the pawl to move on its pivot.This free ing of the pawl also permits lever-spring 67 to pull down therear end of lever G, thus leaving its forward end in readiness for thenext printing operation. hen hammer H is pulled. abruptly by this spring7 8, a leafspring 74 acts as a buffer by engaging pin the card-holder Bso as not to obstruct the card-passage therein. In this position hammerH is held by engagement of its lateral pin in the edge recess in lever Gshown. Pawl 69 is held against this pin 71 in readiness for the nextoperation, by means of a suitably coiled spring (not shown) and engagingbetween the pawl and its pivot.

The inking ribbon spools S, S are moved at each printing operation, bythe manipulation of operating lever G by the employee. When the ribbonis nearly wound oif from one spool and on to the other, the mechanism isautomatically reversedto effect winding in the opposite direction. WViththis descrip tion see Figs. 1 and 2, and for details, Figs. l, 12 and13. The oscillating shaft 9 of printing-operating lever G carries lever14 (Fig. 12) which shares in the reciprocating movements of lever Gcaused by the alternate actions of depression by the employees hand, andof elevation by lever-spring 67 (Fig. 4). This lever a efiects theribbon feed (Fig. 12). Each time lever G is depressed, lever a movesforward (to the right in F lg. 12) and causes a like movement of thefree end of lever 85 which enters its forked upper end, lever 85 beingpivoted on shaft 6. In the free end of lever 85 is pivoted a pawl 86.,which is moved to the right with lever 85, and which has a tooth 95which is in position to operate ratchet wheel 80 (Figs. 12 and 13) butnot ratchet wheel 81. Wheel 80 is fixed on shaft 15 which carries bevelgear 79, which is thereby operated to rotate bevel gear 78, verticalshaft 76 and ribbon spool S. This feeds the ribbon from left to right(Fig. 5). In this direction of operation, the pawl 86 is held to itswork with ratchet 80 by means of a spring 87 fastened to lever 85, thespring 87 carrying atits end a detent which engages the recess in pawl86 in the position shown in Fig. 12. The reverse feed is effected asfollows: A horizontal rod :0 (Figs. 12, 13 and 5) is arranged toreciproa cats from left'to right and right to left in bearings in frameB. On this rod 00 is fastened a sleeve 88 carrying two vertical arms 89,89 which have their upper ends forked to straddle the inking ribbon.Sleeve 88 also carries at its left end a member 91 carrying a stop 93.In the position of this stop 93 shown in Fig. 13, the ribbon is yetbeing fed from left to right, but when the left hand spool S is nearlyempty, there comes from it a portion of the ribbon which carries aprojecting metal part 90 fastened to it (Fig. 13), and this. part 90, asthe ribbon moves from left to right, abuts against the upper forked endof arm 89 and moves it to the right, thereby carrying stop 93 also tothe right and-against fram R stop 93 being now in the path of motion ofprojection 94 of ratchet 86. Thus when lever 14 is next operated, stop93 trips ratchet 86, moving it on its pivot and carrying its front tooth95 down away from engagement with ratchet wheel 80, and carrying itsrear tooth 95A (which, as constructed, occupies a position to the leftof tooth 95) up into engagement with the other ratchet wheel 81, whichis then operated by pivoted'ratchet 86 in the direction opposite to thatin which wheel 80 has been operated, so that the ribbon-spool is alsoturned in the opposite direction, and the ribbon is fed in the oppositedirection. During this reverse feeding operation, the detent of spring87 is held against the lower face of the rear cam edge of ratchet 86,into which position it was forced when ratchet 86 was tripped by theengagement of stop 93 with ratchet-stop 94. The right-hand end of theribbon is provided, like the left-hand end, with an eyelet-device 92,which operates to reverse the feed from left to right. The rod 00 whichcarries vertical arms 89 and also the rest of the reversing mechanism,is held from undesired vibration by spring a (Fig. the end of whichengages alternately in one or the other of two grooves y, 1 in rod in,which results in holding parts in their respective positionscorresponding to the feeding of the ribbon in the two directions. Theabove inking mechanism is characterized by its simplicity, small numberof parts, its easy adjustment, and low cost of manufacture.

Operation 0 setting the rliaZ.-The employees operation of the dial knobD (Fig. 3) results in letting his card drop down into proper position inthe card-holder B, so that the proper horizontal or hour-column of thecard (Fig. 6) is presented to the effective part or parts of theperipheries of the printing wheels. Thus, assuming that the employeedesires to print the time of his arrival on Monday noon, he moves thepointer dial to the In morn position shown in Fig. 3. This results inmoving pin C (Figs. 1 and 5) to its lowest position, so that the In morncolumn of the card, which is the highest column Fig. 6), is opposite theprinting wheels. The operation of hammer H, as above, will now print thetime 12.00 as shown in Fig. 6. Likewise, by operation of the dial knob D(Fig. the pin C may be moved to any higher position required.

The details of the construction and operation between dial-knob D andpin C are as follows (Fig. l) Turning the knob D turns rod m on which isfixed a cam nformed with a helical groove engaged by pin v in pivotedlever 0, resulting in raising or lowering pin C on the free end of lever0.

J1 tlttlt-QUIMCZ escapement.As statel generally above, escapement 9 ismounted on the same sh aft 8 as in minute-wheel K, which is o 'ieratedby the train of gears from power drum 2 (Fig. 10). This toothed wheel 9is tripped sixty times per hour by escapement wheel J (Figs. 10 and 11)which then permits minute-printing wheel K to be driven one space.lVheel J is rotated once an hour by the clock mechanism (Fig. 1) and isspecially constructed to provide a simple and reliable escapement. It isbell-shaped (Figs. 5 and 7). and wheel 9 extends up into its cavity. Theteeth of wheel J are formed on the edge of the bell, but they areinclined inwardly, being directed or radiating inwardly, approximatelytoward shaft 8 as a center, or so that they conform to the angle of theabutting sides of the teeth of wheel 9 in the position of the latterwhere they engage with the teeth of bell-wheel J. Each of wheels 9 and Jhas thirty teeth. Vheel 9 on shaft 8 occupies a position very slightlyoffset, to the right or left, from the center of bell-wheel J the offsetdistance being equal to one-half the pitch of the teeth of bellwheel J.

The operation (Figs. 10 and 11) is effected sixty times per hour. bell Jbeing continuously operated, but wheel 9 and minuteprinting wheel Kbeing stationary for a minute after each tripping operation. Thesuccessive tripping operations occur alternately at the front and at therear of bellwheel J (Fig. 5), and as soon as a tripping operation hasbeen effected, as at the rear of hell wheel J then wheel 9 is locked bytooth engagement at the front of bell J. This is the condition shown inFigs. 10 and 11, where tooth 25 of wheel 9 (at the righthand end orrearl has just escaped between teeth 26 and 27 of hell J; but furthermovement of wheel 9 has been stopped by the engagement of its tooth 22at the left or front) with tooth 23 of bell J. The continued rotation ofbell J will move its tooth 23 out of the path of tooth 22 of wheel 9,whereupon wheel 9 will be driven another 1/60th part of a rotation,being again stopped before its front tooth to the left of its tooth 22has engaged bell J ,this stopping being effected by the engagement ofthe rear tooth of wheel 9 next to the left of its tooth 25 (Fig. 11)with the inside of tooth 27 of bell J. Thus, looking at the front inFig. 5. at one minute a front tooth of wheel 9 will be seen (as at theleft in Fig. 10) in engagement with and stopped by the front and outsideof a tooth of bell J. The next minute said front tooth of wheel 9 willhave disappeared inside bell J,

having jumped back into the bell through the space between two teeththereof, and having been stopped by a rear tooth-engagement of wheel 9and bell J. But at this same second minute the next front tooth of wheel9 will be seen as having approached toward bell J, not yet havingreached it, but opposite the space through which its predecessor hasjumped, and in position so that when the rotation of hell J hasdisengaged the rear tooth-loch, it (the n xt front tooth of wheel 9)will jump against the next front tooth of bell J lying in its path. Theabove described offset of wheel 9 contributes to this result. Thus thetripping of minute-wheel K is effected sixty times per hour, althoughthe escapement wheels have only thirty teeth each, and although bell Jrotates only once an hour. This complete escapement is reliable,compact, and simple, consisting of only two members, which are rotary,and dispensing with all auxiliaries such as crown gears, etc. Thissimple construction results in minimizing friction and strain on theclock mechanism, and is cheap to manufacture and not liable to get outof repair or require any adjustment.

Hour-wheel escapement.As stated generally above, the tripping ofhour-wheel L (which is loosely mounted on shaft H and caused to rotateby the power stored in spring 10) is effected by the operation ofminute-wheel K acting through the arm M, (Figs. 5, 7 and 8) by thestriking of that arm once every hour against wedge N (Fig. 9) of themechanism which normally locks the hour-wheel. Spring 10 has one endfixed at 15 (Fig. 8) in the gear 14 which is driven from main spring 2,and spring 10 has its other end fixed at 16 (Fig. 8) in escapement wheel12, which is fastened to hour-wheel L. During each hour, spring 10 iswound up by the continuous rotation of gear 14:. At the end of eachhour, when wheel 12 is tripped or released. indirectly by the operationof arm M against wedge N, the spring 10 forces wheel 12 to partiallyrotate hourwheel L one space in the direction of the arrow, Fig. 7. Thismovement is stopped by the engagement of arm 0 of the locking mechanism(Figs. 7 and 9) in one of the slots 6 in hour-wheel L, in which positionthe hour-wheel is locked for one hour, while spring 10 is rewound.

The further details of the construction and operation of this trippingmechanism are as follows: Cam 13, (Figs. 7 and 8) is formed integralwith driving gear 14:, the two being connected by a sleeve as shown inFig. 8. Escapement wheel 12 (fixed to hour-wheel L) has an elongatedsleeve surrounding shaft 8, and it is on this sleeve that gear 1 isloosely mounted. Wheels 12 and L, fixed together by screws 11, are alsoloosely mounted on shaft 8, wheel L being mounted on the sleeve part ofwheel 12. Spring 10 is located in the annular space between said sleeveof wheel 12 and the sleeve which connects gear let and cam 13. The lowerscrew 11 (Figs. 7 and 8) which holds wheels L and 12 together isextended through a slot 17 in cam 13. The length of this slot determinesthe angle of rotation of wheels 12 and L when wheel 12 is tripped. Figs.7 and 8 show the parts just after wheel 12 has been tripped, hour-wheelL having moved in the direction of the arrow, and arm O having engagedone of the slots 6 in wheelL to lock it for one hour. Pawls 29 and 30are pivoted in bracket 28 of main frame R, their ends a engage with theteeth of cam .13, and their ends I; engage with the teeth of wheel12.End 6 of pawl 30 is (in the locked position of the parts shown) held inthe path of tooth 32 of wheel 12. At this time also, end a of pawl 29 isheld by its springagainst the back of a tooth of cam 13. Asgear 14 andcam 13 continuously rotate (slot 17 of cam 13 moving to the left, Fig.7) tooth of cam13 moves down and away from, end a of pawl 30, and thespring of this'pawl moves .its end I) from in front of tooth 32 of wheel12; also tooth (Z of cam 13 movesforward andraises enda of pawl 29 sothat end Z2 ofthis pawl. is forced inwardly to engage the frontof tooth33 of wheel 12, but there is an interval (during which the pawls leavewheel. 12 free to turn) between the disengagementof wheel 12 from end 6of pawl 30 and .the engagement of wheel 12 1 with end 6 of pawl 29.. Itis in this interval that arm M (fixed to shaft 8) engagesrwith arm N ofthe lock to move its arm 0 out of slot 6 in hour-wheel L to permit thelatter (with wheel 12) to be driven one spaceby spring 10. At the timeof tripping, the continuous movement of cam 13 has moved its slot 17 sothat itsright-hand end is occupied by screw 11, spring 10 being thenfully wound up, and forcing wheels. 12 and L ,to move .as soon as theyare releasedbypawls 29 and and by arm 0. The movement of hour-wheel Lcarries arm M beyond its position of contact with arm N ofthe lockingmechanism, and the latter is then moved 7 by its. spring .7 (Fig.5) sothat its arm 0 engages in the next slot 6 of hounwheel L, whichslot isnowopposite arm 0 as the result of movement of thehour-wheel. The slot.17 of cam 13 and-the pin 11 of wheel 12 serve tolimit. the motion ofwheels 12 and L and to prevent injuryto spring 10; and pawls 29 and. 30and the locking mecha nism of Fig. .9, controlled by the operation ofthe minute-wheel K, serve to insure the holding of hour-wheel L in itsproperposition at all times, save precisely at the hour.

Means are provided for setting the printing wheels in case of accidentalstoppage of the clock, as follows: The hands on the clock are set at theproper time. This results directly in setting minute-wheel K in properposition, but not hour-wheel L. Lever 96 (Fig. 7) is moved from itsdotted line position-to its full line position to slide on incline w ofthe locking mechanism (Fig. 9) which moves the latter to one side andcauses its arm 0 to move out of engagement withslot e of hour-wheel L.'During this movement of lever 96, ratchet 97 carried by it, is movedover the teeth of ratchet wheel 20. As above described under the titleof Power arrangements, ratchet wheel 20 is interposed in the train ofdriving gears, (being formed integral with gear 21 which drives gear 14to wind up hour-wheel spring 10), so that the return of lever 96 to itsdotted position (Fig. 7) causes (through its pawl 97 engaging the teethof ratchet wheel 20) the rotation of wheel 20 and gears 21 and 14, andthis results in the above described winding. of spring 10 and trippingof the'hour wheel escapement, resulting as normally in the intermittentoperation of the hour-wheel. By repeated operations of lever 96, thehour-wheel is brought into any desired position. This entire hour-wheelescapement mechanism is simple, compact, consists of few parts, andthese rotary, and in combination with the separate power spring 10, itconstitutes mechanism which is effective without subjecting the othermechanism of, the recorder to unduestrains or verloads.

Card-holder cscapcment.-(See Figs. 1, 1%,15 and 16.)As stated generallyabove under Power arrangements, spring 42is wound up once a week by acomplete horizontalshift of card-holder B by an attendant,and every 2 1hours the escapement operates to release clutch 43 which carries an endof spring 42, so that the spring operates the clutch member and shaft 49 to which it is fixed, thereby turning the pinion P and operating rack34 which is fixed to cardholder B. The escapement' of cardholder Bisoperated by power derived from an intermediate part of the train ofgears between main spring drum 2 and the hourw-heel spring 10. That is,alongside gear 21 of that train (F 8 and on the same shaft 5' withthatgear, is mounted a pinion 44 which engages idler 45 (Fig. 14) whichdrives gear Q, (Figs. 14: and. 15) on shaft 46 which is mounted inmainframe R. Shaft 46 makes one rotation each 2& hours and carries withit a cam 47. .In the positions of the partsshown in Figs. 1416, thecard-holder has just been moved one space by spring 412 at the end of 24hours, the tooth of cam t? having just passed off to the right fromtooth j of rocking member 48,

and lower left end f of rocker 48 has been forced down by spring out ofengagement with a slot 9 in escapement wheel 7a. The lock of escapementh immediately after the tripping was caused when tooth j of rockingmember 48 was depressed by spring so that the upper end f of rocker l8was forced down into engagement in upper slots 9' of escapement 72.Escapement 1. is connccted'to clutch 43 by pins 61 held in holes 62 byspring 492. so that as soon as cscapement Ft was released. spring t2turned not only escapement but clutch and shaft 40, but also shifted thecard-holder one space.

The further details of the construction and operation of the escapementare as follows: Cam 4'7. continuously rotated by gear 0 carries itstooth to the right beyond tooth 7' of escapement 7. This carries its pin54L 0 the right. and this. operating in vertical slot of reciprocatingmember moves the latter to the right and also moves to the right themember a? which is pivoted at to reciprocating member Member 57 carriesa )in operating in vertical slot 59 of reciprocating member 53. and inhorizontal slot (30 of rocki; member said pin having attached to it thelower end of spring ioclcer l8 p' 'oted at ll), and thus acted on byspring has its left ends f, f forced down, so that as above the lowerend is disengaged from the oscapement wheel h, whereupon the latterturns. the card-holder is shifted. and upper end 7', of rocker 48 comesdown on a portion of the periphery of escapement h Fig. 16) which isintermediate two of the slots 9. The rest of the movement of wheel ,5brings its point 70 to end f of rocker 48. movement of 72 is retarded.end 7 moves up and over point 7c. and spring as soon as point 71: haspassed f. forced f down into slot g (shown in Fig. 16) thereby lockingthe escapementfor 24: hours during which cam 47 continues to rotate withthe following result. The tooth of cam 47 eventually reaches tooth i ofrocker 4:8 meanwhile carrying cam-pin 54 to the left (Fig. 14;) downthrough slot in reciprocating member thereby moving the latter to theleft. and also moving to the left the pivoted member 57. thereby movinglower end of spring so that this spring tends to raise ends f. f ofrocker i8: but before it can effect this the cam-tooth 47 reaches rockertooth 2 and holds rocker l8 and its ends 7". f from movement by spring52 until cam-tooth 47 passes ed to the left from rocker tooth 2T.whereupon the rocker ends, 7, 7'" are raised, upper end 7 passing out ofslot 9 and allowing escapement it to be turned by spring 1-2, and lowerend f ris ing up against escapement h and falling into lower slot 9(Fig. 16) to lock it once more for 24 hours. These operations arerepeated for seven days, when as stated, the attendant shiftscard-holder B and thereby rewinds spring 42. This operation is asfollows. Lever 63 (Fig. 2) is locked inside the clock case, accessibleonly to the attendant. The latter moves this to the right to theposition shown in dotted lines in Fig. l l. thereby moving clutch 4:3 tothe left out of engagement with escapenient it. Also pins 61 extendingto the left from clutch 4S, engage pawl 6st to prevent unwinding ofspring 42. lVith the members in thes positions, card-holder B is free tobe shifted to carry with it its rack 34 to operate pinion P and shaft'-fl-() and wind up spring 42 to its original tension. lVhen theattendant lets go of lever 63, spring 42 presses clutch 4-3 back to theright into engagement with escapement h. when the apparatus is ready foranother weeks operation;

The principal features of the card-holder mechanism comprise the powerspring 49 independent of the main spring drum quick escapement withpositive lock. and the arrangement whereby the important parts haverotary movements.

The principal characteristics of the entire recorder are simplicity.compactness and low friction. It does as good work as any time recorderhe 'etofore built, and occupies'less space, is cheaper to manufacture.less liable to get out of repair, and can be repaired more readily whennecessary.

I claim 1. In a time recorder. the combination with a clock-mechanism,of hour and minute printingavheels; a main driving spring; an auxiliarydriving spring for the hour wheel; operating connections between themain driving spring. and the auxiliary spring and the m nute wheelrespectivelv: an escapement for the hour wheel. controlled by the minutewheel; an escapement for the minute wheel consisting of two gears. onean ordinary toothed gear mounted with said minute wheel. andthe other abell-shaped gear. mounted to receive the first gear in its cavity andhaving teeth on its edge and inclined to conform to the teeth f thefirst gear; and an operating connection between the clock-mechanism andsaid bell-shaped gear.

2. In a time recorder. the combination with clock-mechanism. of minuteand hour printing-wheels; a driving spring; operating connectionsbetween said spring and said wheels respectively; an escapemeiit for thehour wheel controlled by the minute wheel; an escapement for the minutewheel consisting of two gears, one an ordinary toothed gear mounted withsaid minute wheel, and the other a bell-shaped gear mounted to receivethe first gear in its cavity, and having teeth on its edge and inclinedto conform to the teeth of the first gear; and an operating connectionbetween the clock-mechanism and said bell-shaped gear.

3. In a time recorder, the combination with a clock-mechanism, of hourand minute printing-wheels; escapements for said wheels respectively; anoperating connection between the clock-mechanism and the escapement ofsaid minute wheel; a main driving spring; an auxiliary spring fordriving said hour wheel; and operating con nections between the mainspring and the minute wheel and between the main spring and saidauxiliary spring.

In a time recorder, the combination with a clock-mechanism, of minuteand hour printing-wheels; a driving spring; operating connectionsbetween said spring and said wheels respectively; an escapement for saidminute wheel; an operating connection between the clock-mechanism andsaid escapement; an escapement for said hour wheel; and an operatingconnection between the minute wheel and said escapement for the-hourwheel.

5. In an apparatus of the general character described, the combinationwith an intermittently-operated member, of driving means therefor; andan escapement for said member consisting of two gears, one an ordinarytoothed gear mounted with said member, and the other a bell-shaped gearmounted to receive the first gear in its cavity and having teeth on itsedge and inclined to conform to the teeth of the first gear.

6. In a time recorder, the combination with a printing-wheel, of a maindriving spring; an auxiliary driving spring 'connected to operate saidwheel; an operating connection between the two springs; and anescapement for said printing wheel.

'7. In a time recorder, the combination with a clocl -mechanism, ofminute and hour printing-wheels; an escapement for the minute wheelcontrolled by the clock; an escapement for the hour wheel controlled bythe minute wheel; a main driving spring; operating connections betweensaid spring, and the minute and hour wheels respectively; a card-holder;a spring independent of the main driving spring, foroperating thecard-holder; an escapement forrthe cardholder; and an operatingconnection between the card-holder escapement and said main drivingspring.

8. In a time recorder, the combination with a clock-mechanism, of minuteand hour printing-wheels; a main driving spring; a card-holder; a springindependent of the main driving spring, for operating the cardholder; anescapement for the card-holder; an operating connection between saidmain driving. spring and said card-holder escapement; a clutch normallyheld with said escapement by said inclependent spring, and means forwithdrawing said clutch therefrom to permit the rewinding of saidauxiliary spring.

9. In a time recorder, the combination with a clock-mechanism, of hourand minute printing-wheels; a driving spring; an escapement for theminute wheel controlled by the clock-mechanism; an escapement for thehour wheel controlled by the minute wheel; operating connections betweenthe driving spring, and the hour and minute wheels respectively; acardholder mounted in front of the printing-wheels; an inking ribboncarried on spools on opposite sides of the printing-wheels; a manuallyoperated printing-hammer; mechanism operated by said hammer to feed saidribbon from one spool to the other; a ribbon-reversing mechanismcooperating with said feeding mechanism; anda device carried by theribbon, and operating said reversing mechanism. V

10. In a time recorder, the combination with a clock-mechanism, ofminute and hour printing-wheels; a driving spring mounted on a shaftinside a toothed drum; operating connections between said spring andsaid wheels respectively; an escapement for the minute wheel controlledby the clock-mechanism; an esoapement for the hour wheel controlled bythe minute wheel; the winding mechanism for said spring comprising awinding shaft mounted at right angles to said springdrum shaft, andintermeshing spiral gears fixed on said respective shafts.

JACOB SOKOLOV. Witnesses:

LOUISE M. BRUNS, ALDEN C. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressingthe (Commissioner of Patents,

Washington, I). G.

